Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 283,866	$ 334,603
Short-term investments	696,104	704,955
Accounts receivable, net of allowance for doubtful accounts of $2,791 and $2,263 at March 31, 2020 and December 31, 2019, respectively	140,191	171,459
Inventories	7,158	5,892
Prepaid expenses and other current assets	98,324	96,827
Total current assets	1,225,643	1,313,736
Property and equipment, net	90,613	93,812
Operating lease right-of-use assets, net	58,045	58,758
Goodwill	1,213,454	1,205,292
Intangible assets, net	128,110	134,420
Deposits and other long-term assets	80,521	84,468
TOTAL ASSETS	2,796,386	2,890,486
CURRENT LIABILITIES:
Accounts payable	26,288	26,271
Operating lease liabilities, current	19,017	18,437
Accrued and other current liabilities	23,794	24,496
Accrued compensation	57,941	59,513
Convertible senior notes, current, net	118,805	117,288
Deferred revenue, current	572,533	603,944
Total current liabilities	818,378	849,949
Convertible senior notes, non-current, net	904,120	893,273
Deferred revenue, non-current	347,323	370,623
Operating lease liabilities, non-current	68,277	70,481
Other long-term liabilities	4,680	4,494
Total liabilities	2,142,778	2,188,820
Commitments and contingencies (NOTE 10)
Stockholders' equity:
Common stock, par value of $0.0001 per share; 1,000,000 shares authorized, 222,766 shares and 219,422 shares issued and outstanding as of March 31, 2020 and December 31, 2019, respectively	22	22
Additional paid-in capital	3,488,456	3,457,359
Treasury stock, at cost; 3,333 shares as of March 31, 2020 and December 31, 2019	(150,000)	(150,000)
Accumulated other comprehensive income (loss)	(1,669)	1,180
Accumulated deficit	(2,683,201)	(2,606,895)
Total stockholders’ equity	653,608	701,666
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 2,796,386	$ 2,890,486